Lockheed is developing the F-35 for the U.S. military and eight international partners at a projected cost of more than $382 billion, making it the Pentagon’s most expensive weapons program.
Following are facts about the program:
* Lockheed and subcontractors Northrop Grumman Corp and BAE Systems are developing three variants of the plane, a conventional takeoff and landing (CTOL) model for the Air Force; a short takeoff, vertical landing (STOVL) variant for the U.S. Marine Corps and Italy; and one with wider wings for the Navy to use on aircraft carriers.
* The F-35 fighter jet is 42 percent built of composite materials.
The plane is just over 50 ft long and can travel at a speed of Mach 1.6. The variants have a range of up to 900 to 1,200 nautical miles and carry 15,000 to 18,000 pounds (6,800-8,164 kg) of weapons. * The foreign partners on the program are Britain, Canada, Norway, Denmark, the Netherlands, Turkey, Italy and Australia.
* Lockheed began negotiations on December 8 with the U.S. Defense Department for a fifth batch of 30 low-rate production airplanes, after agreeing for the first time to bear half the cost of an agreed-upon number of design changes required because the plane is already being produced while testing is still continuing.
* The F-35′s engine is built by the Pratt & Whitney unit of United Technologies Corp. Earlier this month, General Electric and Rolls-Royce dropped their effort to build an alternate engine for the F-35, citing continued uncertainty in the program development and production schedules.
* Israel, the first foreign military sales customer, signed a $2.75 billion preliminary agreement in October 2010 to buy 19 F-35s, with an option for one more. That deal is expected to be finalized in the next few weeks.
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